Audi R8 GT Spyder unveiled

Audi's new R8 GT Spyder will be the brand's most expensive production car ever when it goes on sale later this year.

It's an open-top version of the R8 GT coupe that was produced in limited numbers during 2010 and uses the same V10 engine.

As with that car, only 333 models of the GT Spyder will be produced, but this time the UK allocation is expected to be 66 cars – twice the number of GT coupes that were made available here. Audi says strong demand for the coupe prompted the increased UK numbers.

A range of weight-saving measures knock 85kg off the kerbweight of the standard V10 Spyder model. Carbonfibre-reinforced polymer (CFRP) is used for the front splitter and rear bumpers, while a fixed rear spoiler replaces the speed-operated example on the standard car. Bespoke lightweight bucket seats give a 31.5kg saving.

As well as a new front splitter and a redesigned rear bumper, the GT Spyder is identified by red GT badges, round exhaust tailpipes, a larger diffuser and dark LED tail lights. A windscreen surround in matt CFRP is available as on option.

And the engine?The GT's 5.2-litre engine has 552bhp; a 34bhp increase over the standard V10. The increased power and lighter weight help cut the 0-62mph time to just 3.8 seconds, a 0.3 second improvement.

A semi-auto six-speed R tronic transmission comes as standard. Chassis upgrades include more direct steering and tweaked suspension for even sharper handling.

Inside, there's Alcantara trim for the steering wheel and windscreen frame. There are also white instrument dials, GT logos and more CFRP trim.

Audi hasn't confirmed an on-sale date or prices yet, but we don't think you're likely to see much change out of £165,000.